In each question, determine the energy transformations (heat, chemical, electrical, kinetic, sound, nuclear, radiant, gravitational) 1. The burning of coal to make steam which turns a turbine to make electricity. Chemical Heat 2. An explosion like a firework or dynamite. 3. A battery-operated flashlight. Kinetic Electrical

Q: Javier moved the 15 kg dumbbell from a rackI.I m above the floor to the weight bench 0.65 m above…

A: The mass of the dumbbell, m=15 kg   The vertical distance, ∆h=1.1 m-0.65 m=0.45 m   The acceleration…

Q: ΔΚΕ ARKE ΔΡΕ A hockey puck slides across the YES / NO YES / NO YES / NO ice and comes to a stop YES…

A: The fundamental energies of a system under translational and rotational motion are its kinetic…

Q: How much energy does a 900kg car have if it is moving at a velocity of 30m/s? 549000 J O 405000 J O…

A: Given that the mass of the car is 900 kg and the velocity of car is 30 m/s.

Q: Fifteen identical particles have various speeds: one has a speed of 2.00 m/s, two have speeds of…

A:

Q: 9. A basketball whose mass is 0.660 kg falls from rest through a height of 5.50 m, and then bounces…

A: Given:- The mass of the ball is m = 0.66 kg  The initial height of the ball is h = 5.50 m and the…

Q: A 50 kg. diver getsready to dive from a 10 meter high diving board. How much gravitational potential…

A: The gravitational potential energy is given as  U = mgh where, m is the mass, g, is the…

Q: Explain why an object moves faster as it goes down a hill in terms of energy.

A: Answer :-  An object moves faster as it goes down a hill because change in energy from one form to…

Q: A 1400 kg car accelerates from 5 m/s to 10 m/s. The net work done by the car is VI V2 500 kJ 200 kJ…

A: Given: The mass (m) of the car is 1400 Kg. The initial velocity (u) of the car is 5 m/s. The final…

Q: QUESTION 12 A 2kg object was dropped from a height of 2 m. Its potential energy at 0.5 m from the…

A: U=mgh

Q: I just need a refresher. Taking a physics class. Would you mind working out step by step an…

A:

Q: A 0.95 kilogram object is 145.43 meters above the ground. What is the object's potential energy at…

A: m = 0.95 kg h = 145.43 m

Q: A 56-kg roller coaster is moving at 39 m/s at point (2) in the figure. What was its kinetic energy…

A: m=56 kgv2=39 m/s

Q: 3. Cart ( 284 g) on a ramp: Set the ramp so that one end of the ramp is 5cm higher than the other.…

A: from conservation of energy  we have    initial mechanical energy = final mechanical energy

Q: How much power is needed to lift a 750 kg elephant 14.3 m in 30.0 seconds?

A: Given data:  Mass (m) = 750 kg Height (h) = 14.3 m Time (t) = 30.0 s Required: Power (P)

Q: lides down a pole with constant speed. What can

A: A firefighter slides down a pole with constant speed

Q: Laplace Transform Technics 13. Find the Laplace transform of x(t), L[x(t)]. 2(t)+3(t)+x(t) = 5, x(0)…

A: Given:

Q: A 130 g hot wheels car is put on a launcher that is powered by a spring with a constant of 150 N/m.…

A: Given data:  Mass (m) = 130 g = 0.130 kg Spring constant (k) = 130 N/m Compressed by distance (x) =…

Q: pun un 10 A 2,500-kilogram roller coaster car travels along the track from Point 1 to Point 6 as…

A:

Q: Jane and Jake are looking at what happens to body 1 of mass m and body 2 of mass 2m, initially at…

A: The mass of the body 1 is m and the mass of the body 2 is 2m. Assume that equal force is applied on…

Q: 3. A rock weighs 700 g and has a potential energy of 1 500 J. What height is it found at?

A: